The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 16, 2008

Filed:

Nov. 08, 2005
Applicants:

Yasuhito Funyu, Kawasaki, JP;

Takeshi Ohba, Kawasaki, JP;

Hideharu Shako, Kawasaki, JP;

Inventors:

Yasuhito Funyu, Kawasaki, JP;

Takeshi Ohba, Kawasaki, JP;

Hideharu Shako, Kawasaki, JP;

Assignee:

Fujitsu Limited, Nakahara-Ku, Kawasaki-Shi Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 25/49 (2006.01);
U.S. Cl.
CPC ...
Abstract

An address frequency operation unit counts frequencies of occurrences of addresses output by an address conversion unit, and a CPUrewrites an address conversion table in the address conversion unitbased on a comparison between the counted result and a threshold value. When the frequency of the address is lower than the threshold value, the frequency of occurrence of an output address is increased by increasing the number of input addresses corresponding to one output address. Also, distortion in an output signal which is fed back is detected and the address conversion table is rewritten so that the distortion is decreased.


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